<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  
  <div id="app"></div>

  <template id="my-app">
    <h2>电影列表</h2>
    <ul>
      <li v-for="(movie, index) in movies">{{index+1}}.{{movie}}</li>
    </ul>
    <input type="text" v-model="newMovie">
    <button @click="addMovie">添加电影</button>
  </template>

  <script src="../js/vue.js"></script>
  <script>
    const App = {
      template: '#my-app',
      data() {
        return {
          newMovie: "",
          movies: [
            "星际穿越",
            "盗梦空间",
            "大话西游",
            "教父",
            "少年派"
          ]
        }
      },
      methods: {
        addMovie() {
          this.movies.push(this.newMovie);
          this.newMovie = "";

          // this.movies = this.movies.filter(item => item.length > 2);
        }
      }
    }

    Vue.createApp(App).mount('#app');
  </script>
</body>
</html>